The tachyon engine bases the interaction of black holes.

The tachyon engine bases the interaction of black holes. 

The interaction of material makes it existing. And then we can ask does tachyon interacts with other material? The answer is that tachyon interacts but the interaction takes so short time, that the energy of tachyon would not transform to other particles. If tachyon even exists. But in theory, the tachyons could be pulled out from the black hole by bombing it with other black holes. 

So the tachyon engine could be the tachyon sail, where tachyons will blow against the sail, which is formed by singularities. In this most hypothetical system in the world, the back and forth moving black holes would pull tachyons in our universe. The thing can be done by using three black holes, where the one singularity will orbit the larger, and third part of that atom size black holes will stand in long-distance, and the orbiting or moving black hole would pull tachyons out from the third black hole. 

The system would operate by pumping photons in the black holes, and the other black holes will be at the front of that thing. then the smaller black hole will move back and worth ahead the other black holes, what would pull tachyons outside from those things. At this moment I must say that the technology is not quite the level that this thing will work. But would the tachyon engine be the reality in someday?

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Do you see the skull in this image of the nebula?

The reality and non-reality 

Do you see the skull in the image, what I just published? The description for reality is that reality is the thing, what we can feel or some otherways observe. This is the traditional description of reality. And other things are not real. But then some philosophers asked what if something happens behind the wall? What if that thing would not keep any noise, and that is the reason, why we cannot observe it, would it be less real than the things, what happened in the front of us? And is the imagination the reality. 

When we are thinking about reality in other ways, we sometimes see or meet people, who have hallucinations. That kind of thing would not be seen in our position, but those hallucinations are real for those people, who have that kind of thing. That thing means that hallucinations are true for the people, who are feeling them, and this means that the thing, that we cannot see is real to some other people. 

Once some philosopher asked: "if a person has attacked by a wolf and we don't see that thing, is the attack happened or not"? The thing is that we cannot see that attack or something else is not making that thing not true, and this is the thing, that we must realize when we are talking about hallucinations. Those hallucinations can be flashbacks and this is the reason, why we should research those things carefully. 

When we are facing things like event horizons and black holes, we must start to think about reality and the real world again. Black holes and the worlds inside them are real, but they are very far away from us. If the astronaut will drop in the black hole, we cannot make contact with that person ever, and that means that the person ended the existence to us, which means that the person is dead. 

But also somebody can jump on the train or bus, and leave the wrong name, address and telephone number to us. We cannot make contact with that person, but that doesn't mean that the person is dead. We just cannot communicate with that individual. 

When we are thinking about the event horizon or the point of the black hole. Where the escaping velocity reaches the speed of the light, that thing means that we cannot get any observations beyond that point. The mean of the material, what is dropped in the black hole is ended to us. But we know that material exists.

The same way we can think that person lives, even if we cannot make a phone call to the individual. If we would want to transform this idea into the world of dark matter, we would just realize that the dark matter exists. It interacts with the universe by gravity. But that's the only thing, that we know about that material.